CVE-2025-37962 (GCVE-0-2025-37962)
Vulnerability from cvelistv5
Published
2025-05-20 16:01
Modified
2025-05-26 05:24
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix memory leak in parse_lease_state() The previous patch that added bounds check for create lease context introduced a memory leak. When the bounds check fails, the function returns NULL without freeing the previously allocated lease_ctx_info structure. This patch fixes the issue by adding kfree(lreq) before returning NULL in both boundary check cases.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2148d34371b06dac696c0497a98a6bf905a51650
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/829e19ef741d9e9932abdc3bee5466195e0852cf
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/af9e2d4732a548db8f6f5a90c2c20a789a3d7240
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eb4447bcce915b43b691123118893fca4f372a8f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/facf22c1a394c1e023dab5daf9a494f722771e1c
Impacted products
Vendor Product Version
Linux Linux Version: 629dd37acc336ad778979361c351e782053ea284
Version: 60b7207893a8a06c78441934931a08fdad63f18e
Version: 800c482c9ef5910f05e3a713943c67cc6c1d4939
Version: 9a1b6ea955e6c7b29939a6d98701202f9d9644ec
Version: bab703ed8472aa9d109c5f8c1863921533363dae
Version: a41cd52f00907a040ca22c73d4805bb79b0d0972
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   Linux Linux Version: 6.1.134   ≤
Version: 6.6.87   ≤
Version: 6.12.23   ≤
Version: 6.14.2   ≤
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/oplock.c"
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix memory leak in parse_lease_state()\n\nThe previous patch that added bounds check for create lease context\nintroduced a memory leak. When the bounds check fails, the function\nreturns NULL without freeing the previously allocated lease_ctx_info\nstructure.\n\nThis patch fixes the issue by adding kfree(lreq) before returning NULL\nin both boundary check cases."
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      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:24:39.073Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/eb4447bcce915b43b691123118893fca4f372a8f"
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      ],
      "title": "ksmbd: fix memory leak in parse_lease_state()",
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  },
  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37962",
    "datePublished": "2025-05-20T16:01:54.612Z",
    "dateReserved": "2025-04-16T04:51:23.974Z",
    "dateUpdated": "2025-05-26T05:24:39.073Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-37962\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-20T16:15:34.473\",\"lastModified\":\"2025-05-21T20:24:58.133\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nksmbd: fix memory leak in parse_lease_state()\\n\\nThe previous patch that added bounds check for create lease context\\nintroduced a memory leak. When the bounds check fails, the function\\nreturns NULL without freeing the previously allocated lease_ctx_info\\nstructure.\\n\\nThis patch fixes the issue by adding kfree(lreq) before returning NULL\\nin both boundary check cases.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2148d34371b06dac696c0497a98a6bf905a51650\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/829e19ef741d9e9932abdc3bee5466195e0852cf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/af9e2d4732a548db8f6f5a90c2c20a789a3d7240\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/eb4447bcce915b43b691123118893fca4f372a8f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/facf22c1a394c1e023dab5daf9a494f722771e1c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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